<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h2>将 JavaScript 对象转换为 JSON 字符串</h2>
<p id="demo"></p>
<script>
    var obj = { "name":"runoob", "alexa":10000, "site":"www.runoob.com"};
    var myJSON = JSON.stringify(obj);
    document.getElementById("demo").innerHTML = myJSON;
</script>
</body>
</html>